6Q - 6Q connects leaders to employees through six question surveys and receive actionable feedback.
Typeform - Create beautiful, next-generation online forms with Typeform, the form & survey builder that makes asking questions easy & human on any device. Try it FREE!
Impraise - Impraise is a web and mobile app for 360 degree feedback and peer coaching
Survey Monkey - Create and publish online surveys in minutes, and view results graphically and in real time. SurveyMonkey provides free online questionnaire and survey software.
SelfStir - SelfStir offers 360-degree feedback system.
Google Forms - Simple web forms from Google.